Atoms

History of the Atom Theory

By Ra ul
  • Democritus
    460 BCE

    Democritus

    Made the Democritus' model which represents the particle.
  • Dalton

    Dalton

    First to describe atoms in a modern, scientific sense.
  • Thomson

    Thomson

    Designed the Thomson's Plum Pudding model.
  • Rutherford

    Rutherford

    He shot some particles through gold foil, and some bounced back.
  • Bohr

    Bohr

    Discovered the electron shell.
  • Schrödinger

    Schrödinger

    Discovered subshells and that shells are actually orbitals.
  • Chadwick

    Chadwick

    He discovered neutrons